The 1,4-Benzenedicarboxylicacid, 1,4-bis(2-hydroxyethyl) ester, with the CAS registry number 959-26-2, is also known as Bis(ethyleneglycol)terephthalate. Its EINECS number is 213-497-6. It belongs to the product categories of Classes of Alcohols; Monomers; Polymer Science. This chemical's molecular formula is C₁₂H₁₄O₆ and molecular weight is 254.24. What's more, its systematic name is Bis(2-hydroxyethyl) benzene-1,4-dicarboxylate. Besides, when using it, you should not breathe dust and avoid contact with skin and eyes. 

Physical properties of 1,4-Benzenedicarboxylicacid, 1,4-bis(2-hydroxyethyl) ester are: (1)ACD/LogP: 0.32; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.32; (4)ACD/LogD (pH 7.4): 0.32; (5)ACD/BCF (pH 5.5): 1.03; (6)ACD/BCF (pH 7.4): 1.03; (7)ACD/KOC (pH 5.5): 35.61; (8)ACD/KOC (pH 7.4): 35.61; (9)#H bond acceptors: 6; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 10; (12)Polar Surface Area: 71.06 Å²; (13)Index of Refraction: 1.556; (14)Molar Refractivity: 62.13 cm³; (15)Molar Volume: 193.2 cm³; (16)Polarizability: 24.63×10^-24 cm³; (17)Surface Tension: 56.5 dyne/cm; (18)Density: 1.315 g/cm³; (19)Flash Point: 172 °C; (20)Enthalpy of Vaporization: 74.26 kJ/mol; (21)Boiling Point: 446.5 °C at 760 mmHg; (22)Vapour Pressure: 9.35E-09 mmHg at 25°C.

Uses of 1,4-Benzenedicarboxylicacid, 1,4-bis(2-hydroxyethyl) ester: it can be used to produce terephthalic acid bis-(2-mercaptoacetoxy-ethyl) ester by heating. It will need reagent p-MeC₆H₄SO₃H and solvents benzene, tetrahydrofuran with the reaction time of 24 hours. The yield is about 100%.

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: O=C(OCCO)c1ccc(C(=O)OCCO)cc1
(2)InChI: InChI=1S/C12H14O6/c13-5-7-17-11(15)9-1-2-10(4-3-9)12(16)18-8-6-14/h1-4,13-14H,5-8H2
(3)InChIKey: QPKOBORKPHRBPS-UHFFFAOYSA-N